EP2679103A2 - Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant - Google Patents

Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant Download PDF

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Publication number
EP2679103A2
EP2679103A2 EP13172226.6A EP13172226A EP2679103A2 EP 2679103 A2 EP2679103 A2 EP 2679103A2 EP 13172226 A EP13172226 A EP 13172226A EP 2679103 A2 EP2679103 A2 EP 2679103A2
Authority
EP
European Patent Office
Prior art keywords
drum
lifting blades
lifting
dryer according
tobacco
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13172226.6A
Other languages
German (de)
English (en)
Other versions
EP2679103A3 (fr
Inventor
Carsten Fischer
Jürgen Dick
Michael Scherbarth
Stefan Seyer
Tim Ullner
Torsten Grigutsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Publication of EP2679103A2 publication Critical patent/EP2679103A2/fr
Publication of EP2679103A3 publication Critical patent/EP2679103A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
    • F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/22—Tobacco leaves

Definitions

  • the invention relates to a drum dryer for drying tobacco, comprising a rotatably mounted drum having a drum body and a plurality of arranged on the drum body lifting blades.
  • the invention further relates to a drying method using such a drum dryer.
  • Conventional drum dryers are used for drying cut tobacco.
  • the tobacco is dried by heated blades and heated air.
  • the transport of the tobacco through the drum is carried out by lifting the tobacco by means of lifting blades and subsequent falling in the drum.
  • a drum dryer with a plurality of heat medium through, arranged on the inside of the jacket wall lifting blades is for example from EP 1 929 888 A1 known.
  • the object of the invention is to provide a drum dryer and a corresponding drying method, provide improved opportunities to influence the filling and / or flavor of the tobacco to be dried.
  • the invention solves this problem with the features of the independent claim.
  • the invention has recognized that the exchange surface between tobacco and air significantly affects both fillability and taste.
  • a high exchange surface has a positive effect on performance and filling capacity, while a small exchange surface has a positive effect on the taste.
  • both a high filling capacity and a certain flavor may be the aim of the drying.
  • the ratio between air drying and contact drying over the heated lifting blades is adjustable or varied according to the invention.
  • the lifting blades are pivotable about a pivot axis parallel to a rotation axis of the drum.
  • the lifting blades are pivotable by at least 25 °, preferably by at least 30 °, for example by at least 35 °, against a radial direction.
  • the lifting blades each have at their free end on an angled edge portion.
  • the edge portion is adjustable relative to the respective lifting blade, in particular pivotable.
  • the pivot axis of the edge part is here preferably oriented parallel to the pivot axis of the respective lifting blade.
  • a drum dryer for drying tobacco or tobacco mixtures comprises a rotatably mounted drum 10 with a drum body 11, which is designed in particular cylindrical, whereby not only circular cross sections, but also, for example, polygonal or polygonal cross sections are included.
  • the drum 10 has not shown outer shell and end walls. In the interior of the drum 10 or of the drum body 11, a drying space 12 is thus formed for the tobacco to be dried.
  • the rotary bearing for the drum 10 and means for rotating the drum 10 in the drying operation are not shown in the figures.
  • the direction of rotation the drum 10 in the drying operation is indicated in the figures by means of an arrow.
  • the drum dryer also has means not shown, in particular a circuit, for generating a hot air flow through the interior of the drum 10 during the drying operation, namely, ducts, fans, heaters, rotary joints and the like.
  • lifting blades 13 On the inner circumference of the drum body 11 a plurality of projecting into the drying chamber 12 lifting blades 13 is provided.
  • the lifting blades 13 can be distributed uniformly over the circumference of the drum body 11.
  • the lifting blades 13 take the tobacco to be dried due to the rotation of the drum 10.
  • the tobacco entrained by the lifting blades 13 falls back to the ground from a certain lifting height, which depends on different parameters, such as rotational speed of the drum 10, shape and positioning of the lifting blades 13, shape and positioning of any edge parts 16 (see description below), etc. the drum 10 back.
  • there is a certain discharge characteristic 14 for the discarded by the lifting blades tobacco see 4 and FIG. 5 , This will be explained in more detail below.
  • the lifting blades 13 or surfaces of the lifting blades 13 are preferably heatable.
  • the lifting blades 13 have for this purpose preferably by a hot fluid, such as hot water or steam, through-flowable cavities.
  • Each lifting blade 13 may have, for example, two side parts 17 and a heated middle part 18 arranged therebetween (see FIG Fig. 3 ).
  • the drum dryer expediently has means not shown for generating a hot fluid flow through the lifting blades 13 during the drying operation, in particular in a circuit, namely lines, Pump or blower, heaters, rotary joints and the like.
  • the lifting blades 13 may alternatively be electrically heated, for example.
  • the lifting blades 13 are pivotably connected to the drum body 11. Between each lifting blade 13 and the drum body 11, therefore, a pivot bearing 15 is provided.
  • the corresponding pivot axis is preferably oriented parallel to the axis of rotation of the drum 10.
  • Fluid lines between the lift blades 13 and the drum body 11 are preferably flexible with respect to the adjustability of the lift blades 13, i. designed as hose lines.
  • All lifting blades are preferably in operative connection with a uniform adjusting device 19.
  • the adjusting device 19 is in particular arranged annularly around the circumference of the drum body 11 and displaceable relative to the drum body 11 in the circumferential direction.
  • the operative connection between the adjusting device 19 and the lifting blades 13 is in the embodiment according to Fig. 1 to Fig. 3 by provided on the lifting blades 13 slots 21 (see Fig. 1 and Fig. 2 ) and engaging therein, provided on the adjusting device 19, in particular pin-shaped driver 20 (see Fig. 3 ) realized.
  • the elongated holes 21 are preferably provided in extensions 22 of the lifting blades 13, which extend beyond the axis of rotation 15 on the opposite side of the free end of the respective lifting blade 13.
  • the elongated holes 21 may be provided in particular in the side parts 17 of the lifting blades 13.
  • the driver may be provided on the lifting blades 13 and the slots on the adjusting device 13. It Furthermore, other active compounds are conceivable as drivers and slots.
  • the adjusting device 19 is preferably actuated by means of an actuator 23, which is connected on the one hand with the adjusting device 19 and on the other hand, for example, with the drum body 11.
  • the actuator 23 may be, for example, a linear actuator, which acts tangentially or with a predominant tangential component on the adjusting device 19.
  • the actuator may in particular be driven pneumatically or electrically.
  • the adjustment direction of the actuator 23 is in Fig. 1 illustrated by a double arrow.
  • Fig. 1 and Fig. 4 the lifting blades 13 are arranged approximately radially to the drum body 11. This results in the in Fig. 4 illustrated discharge characteristic 14 for the raised by the lifting blades 13 tobacco.
  • the tobacco is dropped here relatively early and results in a broad distribution, ie a large angular range and a high exchange surface (cross-sectional area 14 in Fig. 4 ) between the discarded tobacco and the hot air in the inner space 12 of the drum 10.
  • the ratio between air drying and contact drying over the heated lifting blades 13 is relatively large here. This has a positive effect on the performance of the dryer and on the filling capacity of the dried tobacco.
  • the actuator 23 is actuated at standstill of the emptied drum 10, here for example extended, whereby the adjusting device 19 is displaced relative to the drum body 11 around its circumference, in the embodiment according to Fig. 1 and Fig. 2 in the counterclockwise direction.
  • the provided on the adjusting device 19 driver 20 act on the extensions 22 of the lifting blades 13 and thereby cause a pivoting of the lifting blades 13 about the respective pivot axis 15, the driver 20 slide in the corresponding slots 21.
  • the lifting blades 13 can be pivoted up to a maximum inclined end position in which the drivers 20 abut against the corresponding ends of the elongated holes 21; the end position can also be defined by other stop means.
  • the end position with maximum inclined lifting blades 13 is in Fig. 2 and Fig. 5 illustrated.
  • the maximum swivel angle ⁇ (see Fig. 5 ) of the lifting elements 13 is preferably at least 25 °, more preferably at least 30 °, for example at least 35 °, but may also be above 35 °.
  • the drum 10 may, depending on the requirements of the product to be dried in terms of filling ability and taste to any intermediate position between the approximately radial orientation according to Fig. 1 . Fig. 4 and the maximum inclined orientation according to Fig. 2 . Fig. 5 be set.
  • the actuator 23 or the adjusting device 19 is advantageously locked, so that a defined fixed position or inclination of the lifting blades 13 is ensured. However, it is not excluded to provide an adjustability of the lifting blades 13 during operation of the drum 10.
  • the lifting blades 13 each have an angled or bendable edge portion 16 at their free end.
  • the edge portion 16 is advantageously adjustable relative to the respective blade body 25, in particular about a pivot axis 24 (see Fig. 3 ) pivotable.
  • the blade body 25 refers to a lifting blade 13 without edge portion 16.
  • the adjustability of the edge portions 16 relative to the blade bodies 25 allows a further advantageous variability of the discharge characteristics and thereby the exchange surface between air and tobacco.
  • the pivot axis 24 is preferably oriented parallel to the pivot axis 15. The adjustment and locking the edge parts 16 can be done manually, for example. A controlled, for example electrical adjustment is conceivable.
EP13172226.6A 2012-06-26 2013-06-17 Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant Withdrawn EP2679103A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012210832.7A DE102012210832A1 (de) 2012-06-26 2012-06-26 Trommeltrockner zum Trocknen von Tabak, und entsprechendes Trocknungsverfahren

Publications (2)

Publication Number Publication Date
EP2679103A2 true EP2679103A2 (fr) 2014-01-01
EP2679103A3 EP2679103A3 (fr) 2016-10-12

Family

ID=48670405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13172226.6A Withdrawn EP2679103A3 (fr) 2012-06-26 2013-06-17 Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant

Country Status (3)

Country Link
EP (1) EP2679103A3 (fr)
CN (1) CN103504456B (fr)
DE (1) DE102012210832A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106643055A (zh) * 2016-11-25 2017-05-10 江苏洛尧智慧通信科技有限公司 一种永磁铁氧体烘干机
DE102017120169A1 (de) * 2017-09-01 2019-03-07 Hauni Maschinenbau Gmbh Trommel der Tabak verarbeitenden Industrie zum Behandeln von Tabak
CN110464036A (zh) * 2019-09-12 2019-11-19 刘刚 一种烟叶回潮机的滚筒
CN116105476A (zh) * 2023-02-28 2023-05-12 厦门烟草工业有限责任公司 干燥机及其干燥方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1929888A1 (fr) 2006-12-07 2008-06-11 Hauni Maschinenbau AG Séchoir à tambour de l'industrie de traitement du tabac

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB528511A (en) * 1939-03-29 1940-10-31 Gallaher Ltd Improvements in and relating to the drying of tobacco
DE1778116C3 (de) * 1968-03-29 1979-12-13 Babcock-Bhs Ag Vormals Buettner- Schilde-Haas Ag, 4150 Krefeld Trocknungstrommel mit zentralem Austrittsstutzen
GB1502592A (en) * 1977-01-06 1978-03-01 Imasco Ltd Rotary tobacco dryer
DE10201506A1 (de) * 2002-01-17 2003-07-31 Asa Anlagentechnik Service Ana Scharnierwurfschaufeln
DE102004045041A1 (de) * 2004-09-15 2006-03-30 Hauni Primary Gmbh Tabakaufbereitungseinrichtung mit vertikaler Trommel
ITVE20050051A1 (it) * 2005-10-17 2007-04-18 Comas Costruzioni Macchine Essicatore rotante per tabacco in foglia, in strips e trinciato.-
CN2867237Y (zh) * 2005-12-12 2007-02-07 上海化工研究院 一种活动式转筒抄板结构
CN201319848Y (zh) * 2008-12-04 2009-10-07 安徽中烟工业公司 烘丝机炒料筒
DE102010028501B4 (de) * 2010-05-03 2014-02-13 Hauni Maschinenbau Ag Vorrichtung zum Konditionieren von Tabak

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1929888A1 (fr) 2006-12-07 2008-06-11 Hauni Maschinenbau AG Séchoir à tambour de l'industrie de traitement du tabac

Also Published As

Publication number Publication date
EP2679103A3 (fr) 2016-10-12
CN103504456A (zh) 2014-01-15
DE102012210832A1 (de) 2014-01-02
CN103504456B (zh) 2016-06-08

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